The JDAM guidance kits uses INS & GPS receiver to accurately guide the bomb to its intended target. A JDAM guidence kit allows circular error probable (CEP) of less then 10 m when Global Positioning System (GPS) signal is available but even if the GPS signal is jammed/lost, its inertial guidance system (INS) allows it to achieve a CEP of less then 30 m.
The UAEAF will purchase 4,900 JDAM kits from the United States in a deal worth $304 million.
This deal includes 304 GBU-54 Laser JDAM guidance kits was developed by adding DSU-40 Laser Sensors to the 500-lb GBU-38 JDAM. The UAEAF has also ordered 3,000 GBU-38(V)1 JDAM kits along with 3,300 BLU-111 500lb General Purpose Bombs, 1000 GBU-31(V)1 JDAMkits with 1,000 BLU-117 2,000lb class penetration bombs which look identical to the MK 84, but uses the PBXN-109 thermally insensitive explosive and 600 GBU-31(V)3 JDAM kits with 600 BLU-109 2,000lb hardened penetration bunker buster bombs.